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Sudhanshu Singh

Software Engineer @Bellpost | Backend & Al Integration Specialist | Java, Spring Boot, Next.js | Specialist @Codeforces | Knight @Leetcode | Building Scalable Microservices

Bengaluru

1+ year of work experience

Bellpost
Sep 20251 yrPresent

• Built a Java + Spring Boot contact acquisition pipeline that automated processing for 10,000+ stakeholders and eliminated manual data entry. • Designed an asynchronous, webhook-driven AI content pipeline (Claude, RunwayML, Heygen), improving throughput by 3×. • Integrated Razorpay and Delhivery into core backend systems with reliable event handling via webhooks and retries. • Implemented an async message-queue indexing pipeline with Algolia, enabling near real-time updates for 10k+ records. • Automated retailer payouts and reconciliation using Razorpay APIs, processing hundreds of transactions weekly.
Bellpost
Mar 20257 mosSep 2025

1. Integrated Amazon Personalize with a Spring Boot application to deliver real-time personalized recommendations. 2. Completed end-to-end setup of Amazon Personalize, including dataset preparation and solution deployment. 3. Built and automated two data pipelines to re-train the Personalize model using updated users, items, and interaction data. 4. Developed a real-time interaction ingestion pipeline using API Gateway → Kinesis → Lambda → Personalize. 5. Implemented caching using Redis and distributed locking mechanisms using Redisson to optimize system performance and avoid race conditions.
GitHub
@Sudhanshusingh1182

Sudhanshu’s AI Stack

antigravity
antigravity
codex
codex
cursor
cursor

Education

National Institute of Technology , Patna

Bachelor of Technology - BTech

National Institute of Technology , Patna

20214 yrs2025

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Headline

Software Engineer @Bellpost | Backend & Al Integration Specialist | Java, Spring Boot, Next.js | Specialist @Codeforces | Knight @Leetcode | Building Scalable Microservices

About

Software Engineer with about 1 year of industry experience building scalable backend systems using Java and Spring Boot. At Bellpost, I have designed data pipelines, webhook-driven integrations, and message-queue based systems handling tens of thousands of records and hundreds of weekly transactions. Strong foundation in Data Structures, Algorithms, and System Design with 2000+ problems solved across competitive programming platforms. Actively seeking Backend / Software Engineering roles.

Location

Bengaluru

AI stack

antigravity

codex

cursor

Work experience

Software Engineer 1 at Bellpost, Sep 2025 - Present · 1 yr, • Built a Java + Spring Boot contact acquisition pipeline that automated processing for 10,000+ stakeholders and eliminated manual data entry. • Designed an asynchronous, webhook-driven AI content pipeline (Claude, RunwayML, Heygen), improving throughput by 3×. • Integrated Razorpay and Delhivery into core backend systems with reliable event handling via webhooks and retries. • Implemented an async message-queue indexing pipeline with Algolia, enabling near real-time updates for 10k+ records. • Automated retailer payouts and reconciliation using Razorpay APIs, processing hundreds of transactions weekly.

Software Engineer Intern at Bellpost, Mar 2025 - Sep 2025 · 7 mos, 1. Integrated Amazon Personalize with a Spring Boot application to deliver real-time personalized recommendations. 2. Completed end-to-end setup of Amazon Personalize, including dataset preparation and solution deployment. 3. Built and automated two data pipelines to re-train the Personalize model using updated users, items, and interaction data. 4. Developed a real-time interaction ingestion pipeline using API Gateway → Kinesis → Lambda → Personalize. 5. Implemented caching using Redis and distributed locking mechanisms using Redisson to optimize system performance and avoid race conditions.

Education

Bachelor of Technology - BTech, National Institute of Technology , Patna

Public links

github: https://github.com/Sudhanshusingh1182

Sudhanshu Singh - Software Engineer 1 in Bengaluru | Tal